Dale Haidvogel Institute of Marine and Coastal Sciences Coupled Basin- to Regional-Scale Ocean Modeling as Developed in the U.S. GLOBEC Program Dale Haidvogel.

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Presentation transcript:

Dale Haidvogel Institute of Marine and Coastal Sciences Coupled Basin- to Regional-Scale Ocean Modeling as Developed in the U.S. GLOBEC Program Dale Haidvogel IMCS, Rutgers University

Dale Haidvogel Institute of Marine and Coastal Sciences The principal objective of U.S. GLOBEC research is to understand and predict the effects of global climate change on ocean ecosystem dynamics

Dale Haidvogel Institute of Marine and Coastal Sciences Approach: Spatially nested biophysical models NCEP/MM5 -> ROMS/NPZ -> IBM

Dale Haidvogel Institute of Marine and Coastal Sciences Capabilities developed 1.One- and two-way nesting NCAR CCSM HyCOM SODA 2. 4D Variational data assimilation 3. Food web (NPZD) models 4. Individual-based models (zoop, salmon)

Dale Haidvogel Institute of Marine and Coastal Sciences Northeast Pacific Program: Spatial windows † † CCS box contains multiple applications-dependent inner domains

Dale Haidvogel Institute of Marine and Coastal Sciences “Reduced” CCS (underway) Inner CCS domain (mesoscale survey) 2-Km resolution 2002 COAMPS 9 Km forcing SODA boundary conditions Will include ecosystem model (NPZD+Fe, NEMURO+Fe) Forward runs / data assimilation

Dale Haidvogel Institute of Marine and Coastal Sciences Questions and Issues How good is the forward model? Does it improve upon the reanalysis fields? What processes / model details control the errors? Use of 4DVar to correct errors Redo above for the ecosystems

Dale Haidvogel Institute of Marine and Coastal Sciences

Dale Haidvogel Institute of Marine and Coastal Sciences

Dale Haidvogel Institute of Marine and Coastal Sciences SODA

Dale Haidvogel Institute of Marine and Coastal Sciences Low vertical resolution

Dale Haidvogel Institute of Marine and Coastal Sciences Increased resolution of surface layer

Dale Haidvogel Institute of Marine and Coastal Sciences

Dale Haidvogel Institute of Marine and Coastal Sciences

Dale Haidvogel Institute of Marine and Coastal Sciences

Dale Haidvogel Institute of Marine and Coastal Sciences Recap Significant hindcast skill over several months Influence of boundary data, resolution, … Errors related to mesoscale evolution of flow? Assimilation next (physics first)

Dale Haidvogel Institute of Marine and Coastal Sciences Questions?